The presupposition by the original poster is that Mint when it is released
includes all of Ubuntu's updates and therefore is more stable. I take issue
with that. I think that in order to put Mint together they need time and
therefore it is based on the same as the Ubuntu release one month earlier.
If this is true then Mint is no more stable than Ubuntu.

I think that it is misleading to say that be making statements about
something being better or more stable based one's opinion rather than fact.